Method of and means for manufacturing lathing for walls and ceilings



1 1 1927' K. M. JOHANSSON 5 8 METHOD OF AND MEANS FOR MANUFACTURINGLATHING FOR WALLS AND CEILINGS Filed Sept. 16, 1926 4 Shoots-Sheet 11927' K. M. JOHAN$SON 630'618 IETHOD OF AND MEANS FOR IANUFACTUgINGLATHING FOR WALLS AND CBILINGS Filed Sept. 16, 1926 4 Sheets-Sheet 3.

K. M. JOHANSSON IETHOD OF AND MEANS FOR MANUFACTURING LATHING FOR WALLSAND CE-ILINGS May 31, 1927.

Filed Sept. 16, 1926 4 Sheets-Sheet 4 Patented May 31, 1927.

UNITED STATES PATENT OFFICE.

KARL MARTIN JOHANSSON, OF STOCKHOLM, SWEDEN.

METHOD OF AND MEANS F011, MANUFACTURING LATI-IIN G FOR WALLS AN D CEILINGS.

Application filed September 16, 1926, Serial No. 135,884,

It is known to manufacture reinforced lathing comprising a wire-nettingthe wires of which are rigidly connected together at the crossingpoints,and reed pipes or the like secured to said wire-netting. In orderto fasten said reed pipesor the like to the wire-netting there has beenalready proposed a sewing operation in which the reed pipes are fastenedto the wire-netting by means of under and upper threads, preferablymetal threads or wires.

Such a sewing operation, however, cannot be suitably carried out bymeans of a machine and, in fact, no machines to effect such sewingoperation have hitherto been designed.

This invention has for its object to provide a simple and reliablemethodof manufacturing reinforced lathings and a machine for carrying saidmethod into effect on a conu'nercial and economical basis.

The invention is characterized chiefly by the fact that the reed pipesor the like are fastened to the wire-netting by means of a number ofsingle threads or wires which are bent through meshes of theWire-netting from one side thereof to form loops on the opposite side ofthe netting to receive a reed pipe or the like, said loops after theintroduction of the reed pipe being contracted so as to hold the reedpipe firmly to the wirenetting.

The method will be best understood from a description, taking intoconsideration the annexed drawing which shows one embodiment of amachine whereby the method may be carried out. i

In the drawing Figure 1 is a side elevation of said machine with certainparts removed.

Figure 1 is a side elevation of the operating parts of said machineshowing another position thereof.

Figure 2 is a front elevation of the ma chine with parts removed.

Figure 3 is a side elevation and Figure 4 is an edge view on a largerscale of the means for displacing the looper shaft.

Figure 5 is a side elevation. on the same scale of means to impart anoscillating motion to said looper shaft.

Figure 6 isa side elevation netting feeding mechanism.

Figure 7 is a side elevation with part in section of a needle.

of the wireand in Sweden May 20, 1926.

Figure 8 is a perspective view of part of a lathin according to thisinvention.

With reference to the drawing, a frame 1 supports. a wire-netting supplydrum (not shown), upon which the Wire-netting is wound. From said supplydrum the Wire" netting 2,Figure 1, is passed over guiding rollers 3carried by armsl and adapted to keep the wire-netting in engagement witha transversely extending feeding roller 5 mounted on the top of theframe 1 at. one end thereof, the wire-netting passing below said feedingroller from said guiding roller. From the feeding roller 5 thewire-netting is passed to a drum 6 adapted toreceive the finishedlathing, said drum being situated at the opposite end of the frame tothat at which the roller 5 is situated. On the way between the feedingroller 5 and the receiving drum 6, reed pipes or the like are attachedto the wire-netting in the manner hereinafter described.

The feeding roller 5 is controlled from the main shaft 7 of the machinewhich extends over the entire width of the frame 1 and is carried bybearings 8 attached to a frame- Work9 restin on the top of the frame 1.Said main shaft 7 may receive its power from any desired source, notshown Keyed to the shaft 7 is a cam disc 10, Figure 7. Engaging said camdisc from opposite sides thereof are two levers 11, 12 carryingantifriction rollers 13, 14. mounted at its oneend on a stationaryshaft, as shown at 15, and is connected at an intermediate point by alink 16 to a lever 17 1'0- tatably mounted on the shaft 18 of thefeeding roller 5. Said lever 17 carries apawl 19 meshing in' a ratchetwheel 20 rigidly secured to the shaft 18 or to the roller 5. The lever12 is, likewise, mounted on a stationary shaft, as shown M21, and isconnected by a link 22 to a bell crank lever 23, rotatably mounted onthe shaft 24 of the receiving drum 6 and carrying a pawl 25 meshing in aratchet wheel 26 rigidly secured to said shaft 24 or to the drum 6.Associated with the feeding roller 5 and the receiving drum 6 are alsosuitable meansto preventunintended ortoo rapid movements thereof. Saidmeans are not illustrated in the drawing, as

they may sired.

Cooperating Withthe wire-netting or the be of any well-known typedela-thin'g' is also a guiding roller or drum 2?,

The leverv 11 is" Figure 1, to maintain the Wire-netting in a arm 29also carries at its free end a rotatable roller to gmde the needlethread which may comprise a small gauged iron wire orthe like. At apoint between the needle and the shaft 28 each arm 29 carrise a similarroller 32. The free end of the needle 30 is pointed, and near saidpointed end theneedle is formed with aneye of sufficient SlZBtOEPGIlHitthe'mounting therein of tworollers 34, of small dimensions to guide thefastening or needle thread or wire 36. Leading to said eye is a groove33, Figure 7, formed in the convex s1de of the neodle to gulde saidthread or wire. A i a The wire used as fastening thread is suppliedforeach needle arm 29 fromia supply reell'? mountedupon the top of theframework 9. Fromits respective reel each Wire passes under a roller 38on the frontof the framework 9 and from thence upwardly through atake-up 40 carried by a spring 39. eFrom said take-up the thread passesunder a stationary roller 41 mounted on the top of theframe 1 and isthen passed up- Wardly over the roller 32 and downwardly under a secondstationary rollerw42 on the top of the frame 1,and from thence round theroller 31, down through the groove33, between the rollers 34, 35, jandisthen fastened with its free end to theEWire-netting 2 in any suitableway. i y i Immediately in front of the path ofnthe needles 30 thewire-netting passes through a stationary guide-Way comprising,-for instance, angle-bars 48, 44, to prevent the wirenetting from :verticalmovements. The needle arms29 areadapted to oscillate up and down betweentheiupper extreme position, shown in Figure 1-, and thevlower extreme;position, shown i in ,Figure 1f. Formedin the top of the frame leis ade'- pression, as shown at 100, correspondinglto the path oftheneedles,the purpose of which will be-obvious -as the description proceeds. Themovement of theneedlearlns 29 is de rived from themain shaft 7 by meansof a cam slot disc 45 keyed thereto andacam foi lower- 41 engagingtheslot 46 of; said disc 45, saidycam follower bein keyed to the commonshaft 28 of the needle arms 29;

Provided in, register; with; said depression in the top of the frame 1area number of funnelsshaped sheet-metal members 48 servingito receivethe reed pipes orthe lilge to befastened to the wire-netting 2. InFigure ,1 such a reed pipe is indicated at "49. t i

a Slidably and IQllztttlblYdDOUlltGd in bearings 52, 52 supported by across bar 50 of the frame 1 is a transversely extending shaft 51. Saidshaft '51 carries a number of upwa-rdly it projecting arms 55, one foreach needle arm 2!), said arms 53 having at their upper ends a laterallyextending projection Acting on one ofthe arms 52-3 (as seen to the rightin Figure 2) is a coiled spring 5:"), tending both to maintain the arms53 in theangular position shown in Figures 1 and 1 and to keep the shaft51 displaced to the left, FigureQ, so as to maintain the projections 54out of the paths of the respcctive needles 30. The shaft 50 may bedisplaced against the action of said spring 55 by power derived from themain shaft 7 by means shown in Figures 3 and 4. v Such means compriseacam 56 on the cam disc 45, lanai-1n 5&3 pivoted at 57 which iscontrolled by said earn, a link 59 connecting a second arm 58 on theshaft 5? to an arm 61 attached to the longitudinallyextending journaland a further arm 62 secured to said journal (30 which engages one endof the shaft 51. a i

i To rotate theshaft 51 against the action of spring the following meansare provided. Keyed to shaft 7 is aicam 63, Figure 6. Said cam isengaged by an antifriction roller 64 mounted at one end of a bell cranklever 66 pivoted at 65, the other end of which is connected by a link[37 to an, arm 68 on the shaft 51. This arrangement is designed tooperate in conjunction with the spring 55 to impart an oscillatingmovement to the shaft 51 so as to cause the arms 53 to oscillate betweenthe two extreme positions indicated in Figure 1.

The bell crank lever (56 is also used to impart an oscillating motion toa transverse shaft 69 by means of a link 70 and an arm 71 on said shaft,The shaft 69 carries a number of arms T2, Figures 1 and 1, ex tending tothe paths of the needles 350, said arms being adapted upon the movementof theyshaft to oscillate between the two extrelne positions, shown inFigure 1. y

The operation of the machine is as follows: p y i a The wire-netting ismoved step-wise along the top surface of the frame 1 from the feed mgroller 5 to tl e, receiving drum (5, the wire'netting in said movementpassing through the stationary v guide-way 43,;144 and under thcdrum 27so as to be kept in a straight horizontal state when passing thedepression inthe top surface of the frame 1.

The shaft 7 is as-anncdto rotate llllillti tll rection indicated bythevarrow in Fignr The position shownin Figure 23 sorrel a to theposition shown in Figure 1. The needle arms .29 areat this moment intheir uppermost position, the shaft 51 is pushed to the left andturncdghaclr by the spring 55, and the arms72 are in their uppermostosition. In the continuedrotation of shaft lift 7 the arm 47 is turneddown by the cam 46 causing the needle arms 29 with the needles 30 tosimultaneously descend. The needles will each pass down through a meshof the wire-netting which is now in rest, because of the fact that, asis obvious from Figure 6, the pawls 19 and 25 will by this time slideback on their respective ratchet wheels without operating same. As theneedle arms descend the threads 36 previously lying in zig-zag in theraised position of said arms will slacken according as the arms descend,the zigzag shape of the threads being thereby substantially removed.When the needle arms 29 reach their lowermost position the cam 56 willengage the arm 58 to swing it to such an extent as to push the shaft 51to the right, Figure 2, thereby causing the projections 54 to engage therespective loops of the fasteningthreads formed on the under side of thewire-netting as a result of the above-described downstrolte of theneedles 30. This being ended, the cam63 commences to operate the bellcrank lever 66 to rotate the shaft 51 against the action of the spring55 thereby moving the arms 53 to the position shown bydotted lines inFigure 1.

As a result, the projections 54 engaging in their respective loops ofthe fastening threads 36 will widen same to an extent substantiallycorresponding to the openings of the funnels 48. At the same time thatthe shaft 51 is rotated in this way the shaft 69 is also rotated,causing thearms 72 to swing downwardly, so that the arms 72 will reachthe position shown by dotted lines in Figure 1 by the time that the arms53 "reach their position, shown by dotted lines in the same drawing. Atthis moment a reed pipe or the like is introduced, as by hand, into thefunnels 48, said reed pipe being thereby also introduced into all of theloops of thethreads 36. As shown in Figure 1" the arms 72 in thisposition extend with their free end beyond said reed pipe. The variouscams on the shaft 7 are designed so. that this position will bemaintained for a sufficient period of time, that is, for about f, of arevolution of the shaft 7, to give ample time to the operator tointroduce the reed pipe. l Vhen the circular portion of cam 63 leavesthe lever 66the latter is allowed to swing back again under the actionof the spring 55 which at the same time pushes back the shaft 51 to theleft as to release the projections 54- from their engagement in theloops, assoon as the cam 56 releases the lever 58. Atthe same time theshaft 69 is also turned back to cause the arms 72 to swing upwardly. Thearms 72 in this movement will lift the reed pipe or the like causing itto slide along the arms 53 till it comes into contact with the underaside of the wire netting. The cam slot disc 45 will then again turn thearm 47 and with it the needle arms 29 upwardly to cause the thewire-netting or lathing to the position i for receiving the next reedpipe or the like wlhereupon the cycleof operationa gain takes pace. I

In lilllSlleCl state the lathing is of theappearance shown in Figure 8.The reed pipes 49 attached to the wire-netting 2 at one side thereof bymeans of thethreads 36, will, when the lathing is placed on a wallorceiling to be riveted, maintained the wire-net ting at a suitabledistance from said wall or ceiling so thatthe wire netting after theapplication of the plaster will form a reinforcement situatedsubstantially in the middle of the plaster.

It is to be noted that the details of the machine may be varied withoutifleparting from the principle of the invention.

What I claim is: i

1. A method of manufacturing lathing which comprises taking awire-netting, stretching a number of substantially parallel single wiresover one side of said netting, bending said wires through meshes-of thenetting so as to form loops on the opposite side of the netting,introducing reinforcing liars through said loops, and contracting theloops so as to cause the wires to hold the bars firmly to thewire-netting.

2. A method of manufacturing lathing which comprises taking awire-netting, at taching a number of continuous single wires with theirone end to saidwire netting, stretching the wires in substantiallyparallel directions over one side of said wire-netting, bending thewires through a transversely extending row of meshes of the netting soas to form loops on the opposite side of the wirenetting, introducing areinforcing barin said loops, contracting the loops so as to cause thewires to hold the bar firmly to the wire-netting, again bending thewires through another transversely extending row of meshes and so on.

3. A machine for manufacturing lathing comprising means for carrying awire-net-' ting, means for individually supporting wires adapted to befastened with one end ,to the wire-netting in substantially paralleldirections over one side of said wire-netting, and means for bendingsaid wires through meshes of said netting so as to form loops ontheopposite side of said netting, lying in register with each other asseen in the trans verse direction of the netting.

4c. A machine for manufacturing lathing comprising means for carrying awire-netting, means for lndivldually supporting wires adapted to befastened with one end to the wire-nettlng in substantially parallelclirectlons over one Slde of said wire-netting,

means for bending said wires through meshes of said netting so as toform loops on the opposite side of said netting lying in register witheach other as seen in thetransverse direction of the netting, and meansto facilitate the introduction of reinforcing bars through said loops. ii

5. A. machine for manufacturing lathing comprising means for carrying awire-netting in a substantially horizontal plane, individual reels tosupport wires adapted to extend in substantially parallel directionsfrom said reels over one side of said netting to be fastened theretowith one end, individual means cooperating with such wires to take up asutficient amount of wire from the respective reels and bend it throughtransversely extending rows of meshes of the netting, means to wideneach of the loops thus formed on the opposite side of the netting, andmeans to facilitate the introduction of a reinforcing bar through a rowof loops thus formed and widened.

6. A machine for manufacturing lathing comprising means for carrying awire-netting in a substantially horizontal plane, individual reels tosupport wires adapted to extend in substantially parallel directions afrom said reels over one side of said netting to be fastened theretowith one end, individual means cooperating with such wires to thusformed on the opposite sideo't' the netting, means to facilitate theintroduction ol. a reinforcing bar through a row of loops thus formedand widened, and means to move said bar towards the netting to 'l'acilitale contraction of the wire loops. i

7. A machine for manufacturing lathing which comprises means to supporta wire netting in a substantially horizontal plane. means to move saidnetting in a step-by-step motion over said supporting means, individualreelsto carry wires adapted to extend over one side of said wire-nettingin substantially parallel directions to be lastened thereto with oneend, curved needles engaging the individualwires to takeup sufficientamounts thereof on their way from said reels to the wire netting, meansto cause said needles with the wires to niove to and fro through meshesof the netting, means to engage and widen the loops of wires thus formedon the opposite side of the netting, means to facilitate theintroduction of reinforcing bars in said loops, and means to move saidbars towards the netting so as to facilitate the retraction of theneedles with the wires through said meshes in order to cause the wiresto hold the bars firmly to the nettin In testimony whereof I have signedmy name.

KARL MARTIN J OHANSSON.

